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' � TRENCH ANI� BED WORKSHEET 'Fx���»-''�� s�fs-��titi�i
<br /> 1� AVERAGE DESIGN FLOW �dd�S�1A' '��YYI GTt� �1..�- q-1: Estlmated Sewage Flows In Galions per Day
<br /> A. Estimated � o� gpd(see figure A-1) num e�o
<br /> or measured x 1�(safety factor)= gpd bedrooms ciou i aou u aau m cio�s tv
<br /> 2 300 225 180 6Q�
<br /> `�S�B. Septic tank capaci �,•-loDc� gallons(see figure Gl) s n5o soo 2ia ofine
<br /> (`�'f'f144L� /uo0 c�.�1 -S�Ffqs�,- -�y�p 3Rp��u Oa e,l w 1y1� 4 600 375 256 values
<br /> a tib , � �o o u �(�w��G cos,,.b^�NY-�.i �*��,v '�`��a-!01 '7 5 �5o a5o sva �n me
<br /> 2. SOILS (Site evaluation data) , i o 900 525 a�2 ciass i,
<br /> C. Depth to restricting layer= S' g '(� 'S�io�� feet�*� - �`�a'`�' � » � s�o u,or m
<br /> D. Max depth of system Item 2C-3 ft= ft-3 ft= ft e �2°° a�s aoa cotumns.
<br /> E. Texture St������s �-0��� I•T`�P�r�'Ala'on rate �(1��'�' �Lo^S ,o� SK55�-r� - 3�' � ��.��F►u-
<br /> �!:� MPI og�e.�ai�,,,�
<br /> F. Soil Sizing Factor(SSF� ,-c��l sqft/gpd (see figure D-15) 'f�'�"�. '' " �� - 3 n`i
<br /> G. %Land Slope I % c-�: se tic Tank Ca e�;c�es c� suoo5
<br /> 3. TRENCH or BED BOTTOM AREA Number of Minimum Liquid Liquid capaciry with Liquid capaciry
<br /> Bedrooms Capacity garbage disposal W��disposai&
<br /> H. For trenches with 6 inches of rock below the pipe: ��S Sct4T ise�os�ao
<br /> A x F=Qpd x sqft/gpd = se]ft �c�S�v�• 2 or less 750 1125
<br /> I500
<br /> I. For trenches with 12 inches of rock below the pipe: 3 o�a t000 �soo 2�
<br /> A x F x 0.8= oo d x/.�� s ft/ d x 0.8= a.0 q 'or6 isoo 2zso 3�
<br /> .�gp q gp L�S ft 7,8 or 9 2000 3000
<br /> J. For trenches with 18 inches of rock below the pipe: '��G' ��5 s 4 -� .
<br /> A x F x 0.66=�d x sqft/gpd x 0.66= sqft D-15: Soil Characteristics and Soil Sizing
<br /> Factor(SSF)(>3'separation)
<br /> K. For trenches with 24 inches of rock below the pipe: P..�o����on R.<< 50�,S,v„8 F.«o�
<br /> A x F x 0.6=_eUd x sqEt/gpd x 0.6= sqft minutes per inch sa��T.xt,.>. ,�,.��K��f,,��,
<br /> m i r da ft
<br /> L. For gravity beds with 6 or 12 inches of rock below the pipe; � u`�osan0.'- M"�»aa °o:�
<br /> 1.5 x A x F= 1.5 x�d x sqft/gpd= sqft Lounysand
<br /> 0.1 to S•• Fine eand 1.67
<br /> 6 to]5 Sandy loam 1.T7
<br /> For pressure beds with 6 or 12 inches of rock below the pipe; �b�o� �.o.m �.b�
<br /> 31 to 45 Silt loam 200
<br /> A x F= _�d x sqft/gpd = sqft ,b�o�o a�Yi�m 2Zo
<br /> Sandy clay
<br /> 4. DISTRIBUI'ION(Check a 1 that apply) � S''Y`''''
<br /> over 61 to]20•" Cla 4.20
<br /> Bed (<6%slope) Drop boxes(any slope) � Rock 5i ry���YY
<br /> slower than 120••••
<br /> �Trenches Distribution box(<3%) Chamber • x sY5«ms or rapidly permea ��.o,s:
<br /> pressurt distribution oraenal distribution with
<br /> Pressure Gravity Gravelless no trench>25Y of the total system.
<br /> 'Soil having SOY.or morc fine sand plus viry fine sand
<br /> '•'A mound must be uxd.
<br /> "'An other or perlormance syetem muet br used
<br /> 5. SYSTEM WIDTH,LENGTH and VOLUME
<br /> M. Select trench width= ft D-9: Soil Characteristics and Soil sizing
<br /> factors(SSF�for Gravelless Pipe
<br /> N. If using rock,divide bottom area by width: (H,I,J,K or L)=M= �r�oi,,;o„�„e lineal feet/
<br /> SG�ff+ ft= lineal feet (minutes/inch) soil texture gallon/day
<br /> Rock depth below distribution pipe plus 0.5 foot times bottom area: Fas�e<<nar,o.i' CoarseSand —
<br /> Rock depth in feet+0.5 feet x Area (H,I,J,K,or L) o.i�o s Medium Sand ozs
<br /> Loamy Sand
<br /> 0.1 to 5 Fine Sand•• 0.6
<br /> O,c� ft+0.5 ft) x a�ssqft=�?cuft b�o�s Sandy Loam o.as
<br /> ]6to30 Loam OS6
<br /> Volume in cubic yards =�lume in cuft divided by 27 s��oas Silt Loam o.6�
<br /> �k 1 Z. cuft=27= 1 cuyds 46 to 60 ciay Lo��„`,cci.> o.�a
<br /> Sandy CL
<br /> Weight of rock in tons= cubic yards times 1.4 s�ity cL
<br /> slower than 60•• Cla
<br /> ��_cuyds x 1.4=�_tons Sandy�Iay
<br /> O. If using 10"Gravelless Pipe, Flow (A)x Gravelless SSF(see figure D-9) s�ityciay
<br /> 5oil too coarse for sewage Ireatment.
<br /> QDd X lineal feet/gpd = lineal feet Use systems for rapidlype rmeable soils.
<br /> •'Soil having 50%or more Tine sand+very fine sand.
<br /> P. If using Chambers,H,I,J,or K (based on height of chamber slats) = ••5oil with too high a percentage o(clay fo�
<br /> installation o(a standard inground syslem.
<br /> width of chamber in feet (M)
<br /> sqft- ft= lineal feet �k'�'�'F'�
<br /> �:a���'s;:ae •.a•a ti•a«ic�
<br /> 6. LAWN AREA 4;0:� °:ae�
<br /> .: I�����
<br /> o:�,;�. p:a�,
<br /> Q. Select trench spacing,center to center= feet :b: �•- �
<br /> °"=='e:�'.�='o�e o' �
<br /> R. Multiply trench spacing by lineal feet R x Q=sqft of lawn area ��==��'=4��:a'•�• �a I
<br /> a�_�o o;,���.>�� ..
<br /> ft x lineal feet= sqft ��:";``=�°;b:a�"r, 6-24"Rock
<br /> o b�T�$�q'b'a „e;�:' 3�4-21�2..
<br /> o:g::o.i�4..b i�::ii.io.
<br /> a:'I:.bw�r:�'a 6;'�0,;3_
<br /> ::�.:5.�b:.a::�:4;:`r
<br /> 7. LAYOUI' ,..o�-o�a o>-o•s�
<br /> 76J6'WdiA
<br /> Include a drawing with scale (one inch= �0 . feet). Show pertinent property boundaries,rights-of-way,ease-
<br /> ments, location of house, garage,driveway,and all other improvements, existing or proposed soil treatment sysk�rrt,
<br /> well and dimensions of all elevations,setbacks and separation distances.
<br /> I hereby certify that�have completed this work in accordance with applicable ordinances, rules and laws.
<br /> i�
<br /> �. �-L -``,�--�`—"- (signature) 3��- (license#) (� �/D-C� ! (date)
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